Hey, thanks for your interest in how we calculate an experience's ranking score. It's at the core of Rankers so I'm pleased you're curious.
The ranking score percentage is used to compare and sort experiences in ranking tables. It is not necessarily a direct measurement of the quality of a particular experience as rated by its customers. I've found it a useful tool to allow me to find the best experiences with confidence. But I've also found it important to read the customer reviews before making any final judgements!
We calculate an experience's ranking score using a multi-factor data model instead of a raw data average (mean). This model takes into account several important questions. For instance - is there a trusted body of reviews? What is the age of a review and is the review from a credible source?
Below you'll find details around some of the important factors that went into calculating the ranking score for Skyline Luge Rotorua.
If you have any questions or comments about our ranking score calculation please get in touch at info@rankers.co.nz. We don't believe this is perfect or complete so we're always interested in ways we might make improvements.
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Skyline Luge Rotorua
Valid Reviews
145 Valid Reviews
The Skyline Luge Rotorua experience has a total of 146 reviews. There are 145 valid reviews that are included when calculating the ranking score and 1 invalid review that are excluded from the calculation. Reviews can be excluded only when a reviewer is not verified or after an investigation by our team determines the reviewer is not genuine.
Below is the distribution of ratings for the 145 valid reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 40 |
|
28% |
| 9/10 | 47 |
|
32% |
| 8/10 | 36 |
|
25% |
| 7/10 | 17 |
|
12% |
| 6/10 | 3 |
|
2% |
| 5/10 | 1 |
|
1% |
| 4/10 | 1 |
|
1% |
| 3/10 | 0 |
|
0% |
| 2/10 | 0 |
|
0% |
| 1/10 | 0 |
|
0% |
86.69% Average
The raw data average (mean) for all the Skyline Luge Rotorua valid reviews is 86.69% and is based on 145 valid reviews. This value is not used to calculate the ranking score and it only provided here as a comparison to the weighted average.
Face-to-Face Reviews
121 Face-to-Face Reviews
The Rankers team meets with travellers while they’re in New Zealand and conducts face-to-face surveys. These reviews, in our opinion, are the most trusted in the industry and represent a critical control sample. To our knowledge, we are the only travel review website in the world that has gone to this extent.
More about face-to-face reviews
Within the 145 valid reviews, the experience has 121 face-to-face reviews collected during interviews by our team.
Below is the distribution of ratings for the 121 face-to-face reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 31 |
|
26% |
| 9/10 | 38 |
|
31% |
| 8/10 | 34 |
|
28% |
| 7/10 | 13 |
|
11% |
| 6/10 | 3 |
|
2% |
| 5/10 | 1 |
|
1% |
| 4/10 | 1 |
|
1% |
| 3/10 | 0 |
|
0% |
| 2/10 | 0 |
|
0% |
| 1/10 | 0 |
|
0% |
86.12% Average
The raw data average (mean) for all the Skyline Luge Rotorua face-to-face reviews is 86.12% and is based on 121 face-to-face reviews. This value is not used to calculate the ranking score and it only provided here for comparison purposes.
Weighted Average
87.24%
Rankers calculates a weighted mean as a base average on which we can improve. Individual review's ratings are given a weight based on several factors. The weight of a review determines the overall impact it'll have on the final weighted average.
Recent reviews have more weight as they are more relevant and reflect the experience as it currently operates. Over time reviews become less relevant and loose their impact on the ranking score.
Low rating reviews carry slightly less weight. This dampens the effect of very low ratings for every experience across the board. This is especially important when the experience has few reviews overall and a single negative rating can grossly mischaracterise an experience. Consistent poor reviews will still result in the experience receiving a comparitively low ranking score.
Credible sources provide reviews that can be trusted. If we have verified a reviewer is genuine via a face-to-face meeting then the review carries additional weight.
| Reviewer | Rating | Age | Relative Weight |
|---|---|---|---|
| Christian Paaske | 7/10 | 2934 days | 95% |
| Natasha Startup | 9/10 | 2966 days | 100% |
| Andy | 9/10 | 2971 days | 99% |
| Toby | 10/10 | 2977 days | 100% |
| Micha Kuster | 10/10 | 3035 days | 95% |
| Tim | 8/10 | 3051 days | 91% |
| Jendrik | 8/10 | 3051 days | 91% |
| Alice Frater | 7/10 | 3058 days | 84% |
| Jade Williams | 10/10 | 3071 days | 92% |
| Cora | 9/10 | 3312 days | 69% |
| Lauren Dinnage | 10/10 | 3320 days | 69% |
| Mike Munzenmaier | 9/10 | 3327 days | 68% |
| Matt Irwin | 8/10 | 3330 days | 66% |
| Annalies Beard | 8/10 | 3330 days | 66% |
| Laura Schafer | 9/10 | 3338 days | 67% |
| D Davey | 10/10 | 3347 days | 67% |
| Kirsten Gehrenbeck | 6/10 | 3349 days | 54% |
| Lucile Souday | 10/10 | 3358 days | 66% |
| Lisa Kalkert | 10/10 | 3359 days | 66% |
| David | 10/10 | 3359 days | 66% |
| Philip Piel | 9/10 | 3359 days | 65% |
| Miro | 6/10 | 3359 days | 53% |
| Chiara | 9/10 | 3359 days | 65% |
| Sabine Bergen | 9/10 | 3362 days | 65% |
| Annika Locker | 10/10 | 3365 days | 65% |
| Jess | 8/10 | 3396 days | 61% |
| Lilli Erni | 9/10 | 4029 days | 5% |
| Franz Birkefeld | 9/10 | 4030 days | 5% |
| Laina Black | 7/10 | 4050 days | 2% |
| Ricky White | 9/10 | 4050 days | 3% |
| Jennifer Garner | 9/10 | 4064 days | 2% |
| Philip Donachie | 10/10 | 4067 days | 2% |
| Klaus Petersen | 7/10 | 4069 days | 0% |
| Matthew Trezise | 10/10 | 4070 days | 2% |
| Lorraine Doyle | 10/10 | 4402 days | 20% |
| Lisa Blake | 9/10 | 4522 days | 19% |
| Jenben | 10/10 | 4536 days | 20% |
| David | 7/10 | 4536 days | 17% |
| Nikita Sue | 8/10 | 4803 days | 19% |
| Darren Ronchetti | 10/10 | 4806 days | 20% |
| Asha | 9/10 | 4841 days | 19% |
| Helen & Laurence | 9/10 | 4879 days | 19% |
| kirribilliangel | 10/10 | 4963 days | 20% |
| Dave van Bergen | 9/10 | 5111 days | 19% |
| Guult Ryan | 10/10 | 5133 days | 20% |
| Claire Colquhoun | 8/10 | 5134 days | 19% |
| Andy Johnson | 10/10 | 5138 days | 20% |
| Leanne Shepherd | 8/10 | 5139 days | 19% |
| Chris White | 10/10 | 5154 days | 20% |
| Jane & Regis | 7/10 | 5163 days | 17% |
| Invictus | 8/10 | 5328 days | 19% |
| craigy | 7/10 | 5359 days | 17% |
| Rob | 8/10 | 5429 days | 19% |
| David | 7/10 | 5445 days | 17% |
| Alzbeta Czech | 10/10 | 5526 days | 20% |
| Becky | 8/10 | 5533 days | 19% |
| Amer | 9/10 | 5537 days | 19% |
| Greg Gerritz | 8/10 | 5539 days | 19% |
| Chance McGuire | 10/10 | 5540 days | 20% |
| Hailey & Fin | 8/10 | 5552 days | 19% |
| pedawrds | 10/10 | 5591 days | 20% |
| thomash | 10/10 | 5596 days | 20% |
| asiacritics | 7/10 | 5602 days | 17% |
| Bue Verrept | 8/10 | 5609 days | 19% |
| canadianislandgirl | 7/10 | 5632 days | 17% |
| Ash Sturm | 9/10 | 5632 days | 19% |
| wileyman | 9/10 | 5663 days | 19% |
| clairet | 9/10 | 5711 days | 19% |
| ToryL | 9/10 | 5724 days | 19% |
| muriellef | 7/10 | 5728 days | 17% |
| katesh | 10/10 | 5801 days | 20% |
| caroldarren | 10/10 | 5846 days | 20% |
| Jake1 | 9/10 | 5848 days | 19% |
| HanT | 8/10 | 5856 days | 19% |
| Yvanna | 8/10 | 5865 days | 19% |
| EmmaL | 8/10 | 5879 days | 19% |
| AnthonyB1 | 8/10 | 5880 days | 19% |
| kiwibrit86 | 9/10 | 5890 days | 19% |
| Matt | 10/10 | 5896 days | 20% |
| SuenSwitzerland | 9/10 | 5905 days | 19% |
| Carolyn | 9/10 | 5908 days | 19% |
| Marcus | 8/10 | 5908 days | 19% |
| Kirsty | 10/10 | 5910 days | 20% |
| Fam | 9/10 | 5914 days | 19% |
| Hayley | 8/10 | 5920 days | 19% |
| Debbie Mossman | 9/10 | 5921 days | 19% |
| Alan | 8/10 | 5925 days | 19% |
| Claire | 10/10 | 5932 days | 20% |
| Spyfox | 10/10 | 5953 days | 20% |
| Sonja | 9/10 | 5959 days | 19% |
| Tim | 8/10 | 5967 days | 19% |
| Lorri S | 8/10 | 5971 days | 19% |
| lming60 | 10/10 | 5972 days | 20% |
| melissa | 10/10 | 5972 days | 20% |
| Vincent | 9/10 | 5977 days | 19% |
| Hanna | 5/10 | 5992 days | 9% |
| Henry | 8/10 | 6013 days | 19% |
| Laura | 9/10 | 6030 days | 19% |
| Dave | 9/10 | 6036 days | 19% |
| Anna | 8/10 | 6044 days | 19% |
| S D | 9/10 | 6060 days | 19% |
| Alex Paice | 9/10 | 6071 days | 19% |
| Nikki Gray | 9/10 | 6096 days | 19% |
| Kellie Teichmann | 10/10 | 6147 days | 20% |
| L1z4rd | 9/10 | 6166 days | 19% |
| Allie61 | 10/10 | 6211 days | 20% |
| Adam Richards | 9/10 | 6226 days | 19% |
| Nick | 9/10 | 6232 days | 19% |
| Andria Davis | 9/10 | 6239 days | 19% |
| Georgina Mulligan | 9/10 | 6239 days | 19% |
| catzmagic | 9/10 | 6240 days | 19% |
| Emily Houston | 7/10 | 6243 days | 17% |
| Nancy Dol | 8/10 | 6243 days | 19% |
| John Woodrow | 9/10 | 6247 days | 19% |
| Zara | 10/10 | 6255 days | 20% |
| Ed | 6/10 | 6255 days | 14% |
| Elle | 10/10 | 6255 days | 20% |
| Issy | 7/10 | 6255 days | 17% |
| Katharina | 10/10 | 6258 days | 20% |
| Juliet | 9/10 | 6259 days | 19% |
| paulonline | 10/10 | 6261 days | 20% |
| Marc Hertogs | 7/10 | 6262 days | 17% |
| Ash McNeil | 10/10 | 6262 days | 20% |
| Warren | 8/10 | 6286 days | 19% |
| Klaus | 9/10 | 6294 days | 19% |
| Ann Westmacott | 9/10 | 6320 days | 19% |
| Neil Cooke | 8/10 | 6328 days | 19% |
| Archie Murdoch | 8/10 | 6335 days | 19% |
| Orla | 8/10 | 6336 days | 19% |
| Andy Chapman | 8/10 | 6448 days | 19% |
| JanKovar | 7/10 | 6564 days | 17% |
| Magnus | 8/10 | 6576 days | 19% |
| Lorraine | 8/10 | 6582 days | 19% |
| Dan | 9/10 | 6587 days | 19% |
| Sarah | 8/10 | 6587 days | 19% |
| Richhouse | 8/10 | 6592 days | 19% |
| Emma Gareth | 9/10 | 6598 days | 19% |
| Karen Nellist | 10/10 | 6601 days | 20% |
| beesom | 9/10 | 6612 days | 19% |
| Janne | 7/10 | 6616 days | 17% |
| Frauke | 4/10 | 6618 days | 4% |
| Dave | 10/10 | 6623 days | 20% |
| RosalindBoyes | 7/10 | 6623 days | 17% |
| Hanna | 8/10 | 6624 days | 19% |
| LisaAllen | 10/10 | 6637 days | 20% |
Adjustments
Several adjustments to the weighted average are added to improve relevancy and credibility. These adjustments apply equally to all experiences that meet the criteria.
Sample Size Adjustment
No Adjustment
A reasonable number of reviews are necessary in order for the average to be credible and for an experience to take a prime position within the ranking tables. As such, experiences with only a few reviews have a moderated score. This does not mean that the experience or the reviews can't be trusted. The Skyline Luge Rotorua experience has plenty of reviews and does not meet the criteria for any adjustment.
Recent Reviews Adjustment
-3.70% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 61 days. However the Skyline Luge Rotorua experience does not meet the criteria for any adjustment.
In addition, an experience's ranking score may be adjusted for each day there is no new ranking. After 1 day the adjustment comes into effect. The maximum number of days that can be adjusted for is 200 days. Due to the seasonal nature of many businesses, this adjustment is applied dynamically throughout the year.
The Skyline Luge Rotorua experience has been adjusted for 200 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 197 | -3.65% |
| 198 | -3.66% |
| 199 | -3.68% |
| 200 | -3.70% |
| 201 | -3.72% |
| 202 | -3.74% |
| 203 | -3.76% |
| … | … |
Balancing Adjustment
2.13% Adjustment
Every experience's review score is adjusted to balance out the disproportional number of negative reviews that are contributed.
You won't be surprised to learn that disgruntled customers are more likely to leave a review than happy ones. They are motivated to share their experience and warn others. We consider this a good thing and it's why reading the reviews is important. However we've learned it can misrepresent the experience in a more overall sense.
We apply a balancing adjustment to counteract this effect and ensure the ranking score is a more fair representation of the experience. This adjustment is applied equally to all experiences.
Final Ranking Score
86%
The final ranking score once any adjustments, ratings, and rounding has been applied. This value is recalculated each day and a short rolling average is applied. Therefore it may not be precisely accurate based on the other values presented.